Specific Or Diverse Material Patents (Class 175/425)
  • Patent number: 9650837
    Abstract: A cutting element for an earth-boring tool includes a substrate and volume of superabrasive material positioned on the substrate. The volume of superabrasive material includes a cutting face having at least one recess extending into the volume of superabrasive material and/or at least one protrusion extending outward from the volume of superabrasive material. The volume of superabrasive material includes a first chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the first chamfer surface is located proximate a cutting edge of the volume of superabrasive material. A radial width of the first chamfer surface is between about 0.002 inch and about 0.045 inch. The volume of superabrasive material also includes a second chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the second chamfer surface is located adjacent the radially innermost edge of the first chamfer surface.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: May 16, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Suresh G. Patel, David A. Stockey, Alejandro Flores, Anthony A. DiGiovanni, Danny E. Scott, Leroy W. Ledgerwood, III
  • Patent number: 9404311
    Abstract: Fibers for diamond-impregnated cutting tools and their associated methods for manufacture and use are described. A matrix is formed that contains fibers made from carbon, glass, ceramic, polymer, and the like. The matrix is then sintered to form a cutting portion of a drill bit. The type and concentration of the fibers can be modified to control the tensile strength and the erosion rate of the matrix to optimize the cutting performance of the tools. Additionally, the fibers may be added to the cutting section to weaken the structure and allow higher modulus binders to be used for the cutting tools at a lower cost, allowing the amount of fibers to be tailored to retain the diamonds in the cutting portion for the desired amount. As the cutting portion erodes, the fibers may also increase the lubricity at the face of the cutting portion.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: August 2, 2016
    Assignee: Longyear TM, Inc.
    Inventors: Kristian S. Drivdahl, Michael D. Rupp
  • Patent number: 9347274
    Abstract: Methods of fabricating earth-boring tools include forming an outer portion of an earth-boring tool from a powder mixture comprising hard particles and matrix particles comprising a metal matrix material, disposing a molten material at least partially within the outer portion of the earth-boring tool, and forming the molten material into another portion of the earth-boring tool. Methods of fabricating a bit body of an earth-boring rotary drill bit include forming an outer portion comprising a plurality of hard particles and a plurality of matrix particles comprising a metal matrix material and casting a molten material at least partially within the outer portion of the bit body to form another portion of the bit body. Earth-boring tools include a body for engaging a subterranean borehole having an outer portion and an inner portion comprising at least one material solidified within a cavity formed within the outer portion.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 24, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Jimmy W. Eason, Michael R. Wells
  • Patent number: 9027674
    Abstract: A blank may include a tang section, a base section, and an angled section with a recess. The tang section may have an outer surface with an outer diameter. The base section may have an outer surface with a diameter greater than the outer diameter of the tang section. The angled section may lie between the tang section and the base section and may have an outer surface that transitions in diameter from the outer diameter of the tang section to the outer diameter of the base section. The recess in the angled section may be shaped to engage a tip of a former.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: May 12, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeffrey G. Thomas, Ronald E. Joy
  • Patent number: 9027675
    Abstract: Embodiments of the invention relate to polycrystalline diamond compacts (“PDCs”) comprising a polycrystalline diamond (“PCD”) table including at least a portion having aluminum carbide disposed interstitially between bonded-together diamond grains thereof, and methods of fabricating such PDCs. In an embodiment, a PDC includes a substrate, and a PCD table bonded to the substrate. The PCD table includes a plurality of bonded-together diamond grains defining a plurality of interstitial regions. The PCD table further includes aluminum carbide disposed in at least a portion of the plurality of interstitial regions.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: May 12, 2015
    Assignee: US Synthetic Corporation
    Inventors: Paul Douglas Jones, Kenneth E. Bertagnolli, Debkumar Mukhopadhyay, David P. Miess
  • Publication number: 20150107908
    Abstract: A hardmetal composite used as wear-resistant surfaces and inlays in earth-engaging equipment includes more than one hardphase. At least one hardphase has a high average particle size, for example, from 100 ?m to 2000 ?m. The hardphases vary in terms of particle size, hardness, and binder content, and at least one hardphase includes a particulate constituent capable of plastic deformation that comprises at least 1% residual porosity.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 23, 2015
    Inventors: Harold Sreshta, Eric F. Drake, Douglas B. Caraway
  • Patent number: 9004199
    Abstract: In one aspect, an impregnated drill bit is provided having at least one insert positioned within at least one of the plurality of blades such that the insert spans more than 75% of the height of the blade and at least a portion of the blade has a blade height of at least 40 mm. In another aspect, an impregnated drill bit is provided having a plurality of blades with at least a portion of at least one blade having a blade height of at least 60 mm. Also provided are methods of manufacturing such impregnated drill bits.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: April 14, 2015
    Assignee: Smith International, Inc.
    Inventors: Yuri Burhan, Gregory T. Lockwood, Jonan Fulencheck, Michael G. Azar
  • Patent number: 8985244
    Abstract: Downhole tools are provided with a topographical pattern, and anti-balling material is provided over the topographical pattern. The topographical pattern may be defined by at least one of a plurality of recesses extending into a surface of a body of the tool and a plurality of protrusions protruding from the surface. Downhole tools include an insert disposed within a recess in a body, and the insert comprises an anti-balling material having a composition selected to reduce accumulation of formation cuttings on the tools when the tools are used to form or service a wellbore. Downhole tools include anti-balling material disposed over a porous mass provided over the surfaces of the tools. Methods of forming downhole tools include providing anti-balling material over features on and/or in a surface of a body of a tool. Methods of repairing downhole tools include removing an insert therefrom and disposing a replacement insert therein.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: March 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Suresh G. Patel, Chaitanya K. Vempati, Steven R. Redford, Timothy K. Marvel, Bruce Stauffer, George I. Butler
  • Patent number: 8973683
    Abstract: An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a powder and a binder material. The blank includes an internal blank component and a coating coupled around at least a portion of the surface of the internal blank component. The internal blank component includes a top portion and a bottom portion. The internal blank component is substantially cylindrically shaped and defines a channel extending through the top portion and the bottom portion. The coating is a metal in some exemplary embodiments. The coating reduces the migration of the binder material into the blank thereby allowing the control of intermetallic compounds thickness within the bondline.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: March 10, 2015
    Assignee: Varel Europe S.A.S.
    Inventors: Bruno Cuillier De Maindreville, Williams Gomez
  • Patent number: 8960337
    Abstract: In one aspect of the present invention, a high impact resistant tool comprises a sintered polycrystalline diamond body bonded to a cemented metal carbide substrate at an interface, the body comprising a substantially pointed geometry with an apex, the apex comprising a curved surface that joins a leading side and a trailing side of the body at a first and second transitions respectively, an apex width between the first and second transitions is less than a third of a width of the substrate, and the body also comprises a body thickness from the apex to the interface greater than a third of the width of the substrate.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: February 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Ronald B. Crockett, Casey Webb, Michael Beazer
  • Publication number: 20150041222
    Abstract: Methods of fabricating earth-boring tools include forming an outer portion of an earth-boring tool from a powder mixture comprising hard particles and matrix particles comprising a metal matrix material, disposing a molten material at least partially within the outer portion of the earth-boring tool, and forming the molten material into another portion of the earth-boring tool. Methods of fabricating a bit body of an earth-boring rotary drill bit include forming an outer portion comprising a plurality of hard particles and a plurality of matrix particles comprising a metal matrix material and casting a molten material at least partially within the outer portion of the bit body to form another portion of the bit body. Earth-boring tools include a body for engaging a subterranean borehole having an outer portion and an inner portion comprising at least one material solidified within a cavity formed within the outer portion.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Inventors: Jimmy W. Eason, Michael R. Wells
  • Patent number: 8950518
    Abstract: Methods for manufacturing a matrix tool body comprising placing a first matrix material within a first region of a mold cavity proximate a surface of the mold. A second matrix material may be placed within a second region of the mold cavity positioned inwardly of the first matrix material. The first matrix material and the second matrix material comprise a plurality of hard particles. The plurality of hard particles of the second matrix material have a median particle size that is less than the median particle size of the first matrix material. The plurality of hard particles of the first matrix material and the second matrix material are infiltrated with an infiltration binder to form the tool body. Also included are tool bodies having one or more regions proximate a surface of the tool body comprising an erosion resistant matrix material and/or a wear resistant matrix material.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: February 10, 2015
    Assignee: Smith International, Inc.
    Inventors: Gregory T Lockwood, Youhe Zhang, Yuri Burhan
  • Patent number: 8945720
    Abstract: A hardmetal composite used as wear-resistant surfaces and inlays in earth-engaging equipment includes more than one hardphase. At least one hardphase has a high average particle size, for example, from 100 ?m to 2000 ?m. The hardphases vary in terms of particle size, hardness, and binder content, and at least one hardphase includes a particulate constituent capable of plastic deformation that comprises at least 1% residual porosity.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: February 3, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: Harold Sreshta, Eric F Drake, Douglas B Caraway
  • Patent number: 8919461
    Abstract: A well tool is disclosed. The tool includes a first member having a surface that is configured for exposure to a well fluid, the first member comprising a metallic coating disposed on a substrate, the metallic coating having a plurality of dispersed nanoparticles disposed therein and providing the surface. The tool also includes a second member that is disposed in slidable engagement on the surface of the first member. In another exemplary embodiment, a well tool includes a first member having a surface that is configured for exposure to a well fluid, the first member comprising a metallic alloy, the metallic alloy having a plurality of dispersed nanoparticles disposed therein and providing the surface.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: December 30, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Hendrik John
  • Publication number: 20140374171
    Abstract: A method of manufacturing a well tool can include loading a matrix material into a mold, then sintering the matrix material in the mold; and then loading another matrix material into the mold. A well tool can include a longitudinal axis, an erosion resistant layer exposed to one or more erosive factors when the well tool is installed in a well, and a support layer which supports the erosion resistant layer. The erosion resistant and support layers can include respective matrix materials, and the erosion resistant layer can extend greater than approximately 1.27 cm in a direction parallel to the longitudinal axis. Another method of manufacturing a well tool can include forming a rigid layer from a powdered matrix material; and then infiltrating both that matrix material and another matrix material with a hot liquid binder material.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 25, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC
    Inventor: Jeffrey G. Thomas
  • Patent number: 8905117
    Abstract: Methods of forming at least a portion of an earth-boring tool include providing at least one insert in a mold cavity, providing particulate matter in the mold cavity, melting a metal and a hard material to form a molten composition, and casting the molten composition. Other methods include coating at least one surface of a mold cavity with a coating material having a composition differing from a composition of the mold, melting a metal and a hard material to form a molten composition, and casting the molten composition. Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase, a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: December 9, 2014
    Assignee: Baker Hughes Incoporated
    Inventors: John H. Stevens, Jimmy W. Eason
  • Patent number: 8893828
    Abstract: A drill bit may include a bit body having a plurality of blades extending radially therefrom and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades. The bit body has a continuous infiltration binder and a plurality of carbide particles dispersed in the continuous infiltration binder, wherein at least a portion of the plurality of carbide particles and at least a portion of the continuous infiltration binder form a first carbide matrix region, and wherein the plurality of carbide particles forming the first carbide matrix region have an average grain sizes of less than about 44 microns.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: November 25, 2014
    Assignee: Smith International, Inc.
    Inventors: Gregory T. Lockwood, Madapusi K. Keshavan, Anthony Griffo
  • Patent number: 8863864
    Abstract: A superabrasive compact (e.g., a polycrystalline diamond compact) including a substrate and at least one feature for reducing the susceptibility of the substrate to liquid metal embrittlement during brazing operations is disclosed. The superabrasive compact may include a region between the substrate and a superabrasive table in which residual tensile stresses are located. The at least one feature may be disposed proximate to the region between the substrate and the superabrasive table in which residual tensile stresses are located.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: October 21, 2014
    Assignee: US Synthetic Corporation
    Inventor: David P. Miess
  • Patent number: 8858870
    Abstract: A method of making an article of manufacture includes positioning a cemented carbide piece comprising at least 5% of the total volume of the article of manufacture, and, optionally, a non-cemented carbide piece in a void of a mold in predetermined positions to partially fill the void and define an unoccupied space. Inorganic particles are added to the mold to partially fill the unoccupied space and provide a remainder space. The cemented carbide piece, the non-cemented carbide piece if present, and the hard particles are heated and infiltrated with a molten metal or a metal alloy. The melting temperature of the molten metal or the metal alloy is less than the melting temperature of the inorganic particles. The molten metal or metal alloy in the remainder space solidifies and binds the cemented carbide piece, the non-cemented carbide piece if present, and the inorganic particles to form the article of manufacture.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: October 14, 2014
    Assignee: Kennametal Inc.
    Inventors: Prakash K. Mirchandani, Morris E. Chandler, Michale E. Waller, Heath C. Coleman
  • Publication number: 20140302305
    Abstract: A composite includes a porous matrix that includes a molybdenum-silicon-boron (Mo—Si—B) alloy that has a plurality of pores with a lubricant in contact with the Mo—Si—B alloy, a hydrophobic compound in contact with the Mo—Si—B alloy, or a combination thereof. A method for preparing a porous composite includes disposing a porous matrix comprising a Mo—Si—B alloy on a substrate, the Mo—Si—B alloy comprising a plurality of pores; disposing a lubricant on a surface of the porous matrix; and disposing a hydrophobic compound on a surface of the porous matrix to form the porous composite.
    Type: Application
    Filed: April 8, 2013
    Publication date: October 9, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Somesh Kumar Mukherjee, Vivekanand Sista, John H. Stevens
  • Patent number: 8852546
    Abstract: PCD materials comprise a diamond body having bonded diamond crystals and interstitial regions disposed among the crystals. The diamond body is formed from diamond grains and a catalyst material at high pressure/high temperature conditions. The diamond grains have an average particle size of about 0.03 mm or greater. At least a portion of the diamond body has a high diamond volume content of greater than about 93 percent by volume. The entire diamond body can comprise high volume content diamond or a region of the diamond body can comprise the high volume content diamond. The diamond body includes a working surface, a first region substantially free of the catalyst material, and a second region that includes the catalyst material. At least a portion of the first region extends from the working surface to depth of from about 0.01 to about 0.1 mm.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: October 7, 2014
    Assignee: Smith International, Inc.
    Inventors: Madapusi K. Keshavan, Youhe Zhang, Yuelin Shen, Anthony Griffo, Michael Janssen
  • Publication number: 20140284114
    Abstract: Binder compositions for use in forming a bit body of an earth-boring bit include at least one of cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from at least one of a transition metal carbide up to 60 weight percent, a transition metal boride up to 60 weight percent, and a transition metal silicide up to 60 weight percent, wherein the weight percentages are based on the total weight of the binder. Earth-boring bit bodies include a cemented tungsten carbide material comprising tungsten carbide and a metallic binder, wherein the tungsten carbide comprises greater than 75 volume percent of the cemented tungsten carbide material.
    Type: Application
    Filed: March 19, 2013
    Publication date: September 25, 2014
    Applicants: TDY Industries, Inc., Baker Hughes Incorporated
    Inventors: Prakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins
  • Patent number: 8841005
    Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 23, 2014
    Assignee: Kennametal Inc.
    Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
  • Patent number: 8839887
    Abstract: A carbide composite material that includes a continuous ductile phase; and at least one discrete carbide region surrounded by the continuous ductile phase, each discrete carbide region may comprise an integrally bridged plurality of cast and/or sintered carbide particles, and each discrete region may have a nodular particle morphology.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: September 23, 2014
    Assignee: Smith International, Inc.
    Inventors: Sike Xia, Zhou Yong
  • Publication number: 20140246248
    Abstract: Hardfacing compositions include grains of hard material embedded within a cobalt-based metal alloy that includes ruthenium. Earth-boring tools include such hardfacing compositions on one or more surfaces thereof. Methods of applying hardfacing to an earth-boring tool include embedding grains of hard material in a molten cobalt-based metal alloy including ruthenium on a surface of an earth-boring tool, and cooling and solidifying the molten cobalt-based metal alloy with the grains of hard material embedded therein.
    Type: Application
    Filed: March 1, 2013
    Publication date: September 4, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Jimmy W. Eason
  • Patent number: 8800693
    Abstract: Polycrystalline compacts include non-catalytic, non-carbide-forming particles in interstitial spaces between interbonded grains of hard material in a polycrystalline hard material. Cutting elements and earth-boring tools include such polycrystalline compacts. Methods of forming polycrystalline compacts include forming a polycrystalline material including a hard material and a plurality of particles comprising a non-catalytic, non-carbide-forming material. Methods of forming cutting elements include infiltrating interstitial spaces between interbonded grains of hard material in a polycrystalline material with a plurality of non-catalytic, non-carbide-forming particles.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: August 12, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Anthony A. DiGiovanni
  • Patent number: 8789610
    Abstract: Earth-boring casing shoes include a crown configured for at least one of drilling and reaming a wellbore when the crown is attached to a section of casing and the casing is advanced into a wellbore. The crown includes a body comprising a corrodible composite material, and at least one cutting structure carried on the body. The casing shoes further include a connection structure configured for attachment to a section of casing. Methods are used to form such casing shoes, and such casing shoes are used to install casing within wellbores.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: July 29, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: James Andy Oxford
  • Patent number: 8783380
    Abstract: One aspect of the instant disclosure relates to a subterranean drilling assembly comprising a subterranean drill bit and a sub apparatus coupled to the drill bit. Further, the sub apparatus may include at least one cooling system configured to cool at least a portion of the drill bit. For example, the sub apparatus may include at least one cooling system comprising a plurality of refrigeration coils or at least one thermoelectric device. In another embodiment a subterranean drill bit may include at least one cooling system positioned at least partially within the subterranean drill bit. Also, a sub apparatus or subterranean drill bit may be configured to cool drilling fluid communicated through at least one bore of a subterranean drill bit and avoiding cooling drilling fluid communicated through at least another bore of the subterranean drill bit. Methods of operating a subterranean drill bit are disclosed.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 22, 2014
    Assignee: US Synthetic Corporation
    Inventors: Kenneth E. Bertagnolli, Scott M. Schmidt
  • Patent number: 8776341
    Abstract: Hardfacing is applied on gage surfaces of bit blades, the leading and trailing edges of bit blades, and on carbide inserts. The gage surfaces contains natural diamonds, synthetic diamonds, thermally stable polycrystalline (TSP) diamonds and carbide inserts, and the hardfacing is applied over at least a portion of them. As primary cutters on the bit blades are worn down during drilling, the gage surfaces of the bit blades are also worn down. A hardfacing is applied to the worn gage surfaces of the bit blades, thereby allowing the drill bit to drill deeper and longer without requiring replacement.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: July 15, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: James L. Overstreet, Kenneth E. Gilmore, James C. Green
  • Publication number: 20140190748
    Abstract: A plurality of cutting faces is attached sequentially at a distal end of a drill string. The forward most cutting face that is distal to the top of the hole is exposed and used for drilling until worn to a point of inefficiency. The forward most or distal cutting face is then detached, exposing the next cutting face in the sequence. Detachment of the forward most cutting face is performed by remote actuation at the top of the drill string and/or outside the hole. A new cutting face is provided without the necessity of removing the drill string. The detachment process is repeated as long as drilling is continued and cutting faces remain.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 10, 2014
    Inventor: John Bloomfield
  • Patent number: 8770324
    Abstract: Partially formed earth-boring rotary drill bits comprise a first less than fully sintered particle-matrix component having at least one recess, and at least a second less than fully sintered particle-matrix component disposed at least partially within the at least one recess. Each less than fully sintered particle-matrix component comprises a green or brown structure including compacted hard particles, particles comprising a metal alloy matrix material, and an organic binder material. The at least a second less than fully sintered particle-matrix component is configured to shrink at a slower rate than the first less than fully sintered particle-matrix component due to removal of organic binder material from the less than fully sintered particle-matrix components in a sintering process to be used to sinterbond the first less than fully sintered particle-matrix component to the first less than fully sintered particle-matrix component.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: July 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Redd H. Smith, Nicholas J. Lyons
  • Publication number: 20140182948
    Abstract: A copper, manganese, nickel, zinc and tin binder metal composition having a melting point of 1500° F. or less that includes zinc and tin at a sum weight of about 26.5% to about 30.5% in which zinc is at least about 12% and Sn is at least about 6.5%. The binder metal having a melting point of 1500° F. or less can be used at an infiltrating temperature of 1800° F. or less in forming drilling tools and tool components.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 3, 2014
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: MINGDONG CAI, GREGORY LOCKWOOD
  • Publication number: 20140182949
    Abstract: A cutter pocket, a downhole tool formed with at least one cutter pocket, and a method for coupling a cutter to the cutter pocket is described herein. The cutter pocket is formed within at least one blade of the downhole tool and includes a pocket back fabricated from a first material, a first pocket side extending from one end of the pocket back to a leading edge of the downhole tool, and a second pocket side extending from an opposing end of the pocket back to the leading edge. The pocket back and the pocket sides define a cavity. A cutter is positioned and coupled at least partially within the cavity. The height of an upper surface of the first material of the pocket back ranges between thirty percent to sixty-five percent of the cutter girth.
    Type: Application
    Filed: December 11, 2013
    Publication date: July 3, 2014
    Applicant: VAREL INTERNATIONAL IND., L.P.
    Inventor: Gary M. Thigpen
  • Patent number: 8763730
    Abstract: Diamond bonded constructions comprise a body comprising a plurality of bonded together diamond grains with interstitial regions disposed between the grains that are substantially free of the catalyst material used to initially sinter the body. A metallic substrate is attached to the body, and a braze joint is interposed between the body and the substrate. The body is metallized to include a metallic material disposed along a substrate attachment surface in contact with the braze joint, wherein the metallic material is different from the braze joint material. The metallic material may exist within a region of the body extending fully or partially into the body, and/or may exist as a layer extending away from the substrate attachment surface. The body includes a working surface characterized by empty interstitial regions or by interstitial regions filled with an infiltrant material, wherein the infiltrant material is different from the metallizing material.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: July 1, 2014
    Assignee: Smith International, Inc.
    Inventors: Peter Cariveau, Georgiy Voronin, J. Daniel Belnap
  • Patent number: 8746375
    Abstract: Wellbore tools include a body and a superhydrophobic surface disposed over at least a portion of the body. The superhydrophobic surface includes a patterned surface of a hydrophobic material exhibiting a higher hydrophobicity than an unpatterned surface of the hydrophobic material. A wellbore tool may include a seal, at least one sensor, and at least one flow line, each having at least one superhydrophobic surface. Methods of forming wellbore tools include forming a body, forming a hydrophobic surface over at least a portion of the body, and forming a pattern in a surface of the body, such that the patterned surface exhibits a higher hydrophobicity than an unpatterned surface of the same material.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 10, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: John Hendrik, Sunil Kumar
  • Patent number: 8746373
    Abstract: Earth-boring rotary drill bits may include a bit body attached to a shank assembly at a joint. The joint may be configured to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference at the joint. The joint may be configured to carry a selected portion of any tensile longitudinal load applied to the drill bit. Methods for attaching a shank assembly to a bit body of an earth-boring rotary drill bit include configuring a joint to carry at least a portion of any tensile longitudinal and rotational load applied to the drill bit by mechanical interference. The joint may be configured to carry a selected portion of any tensile longitudinal load applied to the drill bit by mechanical interference.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: June 10, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Redd H. Smith, James L. Duggan, Anupam K. Singh
  • Publication number: 20140151132
    Abstract: Rotary drag bits comprise a body comprising a face at a leading end of the body. An abrasive-impregnated cutting structure is located at the face of the body. The abrasive-impregnated cutting structure comprises abrasive particles dispersed within a matrix material. The abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. The wear resistance varies at least substantially continuously within the abrasive-impregnated cutting structure.
    Type: Application
    Filed: February 5, 2014
    Publication date: June 5, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: Van J. Brackin, Jeffrey B. Lund, Danny E. Scott, Marcus R. Skeem, Matthew R. Isbell
  • Publication number: 20140144711
    Abstract: A blank may include a tang section, a base section, and an angled section with a recess. The tang section may have an outer surface with an outer diameter. The base section may have an outer surface with a diameter greater than the outer diameter of the tang section. The angled section may lie between the tang section and the base section and may have an outer surface that transitions in diameter from the outer diameter of the tang section to the outer diameter of the base section. The recess in the angled section may be shaped to engage a tip of a former.
    Type: Application
    Filed: June 22, 2011
    Publication date: May 29, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jeffrey G. Thomas, Ronald E. Joy
  • Publication number: 20140131115
    Abstract: An apparatus and method for manufacturing a downhole tool that reduces failures occurring along a bondline between a cemented matrix coupled around a blank. The cemented matrix material is formed from a tungsten carbide powder, a shoulder powder, and a binder material, wherein at least one of the tungsten carbide powder or the shoulder powder is absent of any free tungsten. The blank, which optionally may be coated, is substantially cylindrically shaped and defines a channel extending from a top portion and through a bottom portion of the blank. The absence of free tungsten from at least one of the tungsten carbide powder or the shoulder powder reduces the reaction with iron from the blank, thereby allowing the control and reduction of intermetallic compounds thickness within the bondline.
    Type: Application
    Filed: January 23, 2014
    Publication date: May 15, 2014
    Applicant: VAREL INTERNATIONAL IND., L.P.
    Inventors: Gary M. Thigpen, Federico Bellin, Marvin Windsor Amundsen, Olivier Ther, Alfazazi Dourfaye, Bruno Cuillier De Maindreville, Williams Gomez
  • Publication number: 20140116782
    Abstract: A method of shaping a wellbore comprising attaching a drilling apparatus to a drill string, which has a side cutting sub-assembly with both cutting and gauging surfaces; a fluid circulating sub-assembly which has nozzles directing fluid up the wellbore and past the cutting surfaces; and a bullnose assembly with forward pointing nozzles and a bullnosed front end to prevent catching in ledges of a rough drilled wellbore. The drilling apparatus is then passed through the wellbore such that the side cutting sub shears arch wellbore walls of dog legs to ease the turns and smooth the bore wall in preparation for running liner/casing or other down hole assemblies which previously may have had difficulty going in hole.
    Type: Application
    Filed: June 9, 2011
    Publication date: May 1, 2014
    Inventors: William Antonio Bonett Ordaz, Mark Douglas Harbert, Mohamed M. Omar, Nader Alexander Sheshtawy
  • Publication number: 20140102809
    Abstract: A coating that includes a polyisocyanate compound and at least one metal inclusion selected from the group consisting of tungsten and tungsten carbide. The metal inclusions range between about five percent by weight to about fifty percent by weight. A downhole tool that includes a body, a shank positioned at one end of the body, at least one cutter coupled to the body, and a coating coupled to at least a portion of one or more of the body or the shank. The coating includes a polyisocyanate compound and at least one metal inclusion selected from the group consisting of tungsten, tungsten carbide, and aluminum. The metal inclusions range between about five percent by weight to about fifty percent by weight. An intermediate coating is optionally disposed between at least a portion of the coating and at least one of the body or the shank.
    Type: Application
    Filed: October 15, 2012
    Publication date: April 17, 2014
    Inventors: William W. King, Vamsee Chintamaneni
  • Patent number: 8697258
    Abstract: An article includes a working portion including cemented carbide, and a heat sink portion in thermal communication with the working portion. The heat sink portion includes a heat sink material having a thermal conductivity greater than a thermal conductivity of the cemented carbide. Also disclosed are methods of making an article including a working portion comprising cemented carbide, and a heat sink portion in thermal communication with the working portion and including a heat sink material having a thermal conductivity that is greater than a thermal conductivity of the cemented carbide. The heat sink portion conducts heat from the working portion.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 15, 2014
    Assignee: Kennametal Inc.
    Inventors: Prakash K. Mirchandani, Alfred J. Mosco, Eric W. Olsen, Steven G. Caldwell
  • Patent number: 8689909
    Abstract: An insert for an earth-boring tool includes a body and a coating disposed over at least a portion of the body. The coating comprises a ceramic comprising boron, aluminum, and magnesium. Polycrystalline diamond compact cutting elements may include a hard polycrystalline material, a supporting substrate, and a coating disposed over at least a portion of the hard polycrystalline material. An earth-boring drill bit may include a bit body and at least one polycrystalline diamond compact cutting element secured to the bit body. The polycrystalline diamond compact cutting element may have a coating comprising a ceramic of boron, aluminum, and magnesium, and may be disposed over at least a portion of a hard polycrystalline material. A method of forming an insert for an earth-boring tool may include forming a protective coating including a ceramic of boron, aluminum, and magnesium over a cutting element.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: April 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Anthony A. DiGiovanni
  • Patent number: 8689910
    Abstract: A rotary drag bit for drilling subterranean formations includes a bit body having a face extending from a centerline to a gage. A plurality of blades may be disposed on the face, and may generally extend radially outwardly toward the gage. The bit may further include a plurality of discrete impregnated cutting posts, each of which may extend outwardly from an associated blade. Each discrete impregnated cutting post angles generally toward a front edge of the associated blade and generally toward the intended direction of rotation of the bit. The rotary drag bit may further include a plurality of matrix pockets disposed on the blades. The discrete impregnated cutting posts may be housed within corresponding matrix pockets.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: April 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Michael L. Doster
  • Patent number: 8662209
    Abstract: A front face of a diamond table mounted to a substrate is processed, for example through an acid leach, to remove interstitial catalyst binder and form a thermal channel. A material is then introduced to the front face of the diamond table, the introduced material backfilling the front face of the diamond table to fill interstitial voids left by removal of the catalyst binder in the thermal channel to a desired depth. The material is selected to be less thermally expandable than the catalyst binder and/or more thermally conductive than the catalyst binder and/or having a lower heat capacity than the catalyst binder.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: March 4, 2014
    Assignee: Varel International, Ind., L.P.
    Inventors: Alfazazi Dourfaye, William W. King, Michael R. Reese
  • Patent number: 8662207
    Abstract: Rotary drag bits comprise a body comprising a face at a leading end of the body. An abrasive-impregnated cutting structure is located at the face of the bit body. The abrasive-impregnated cutting structure comprises abrasive particles dispersed within a matrix material. The abrasive-impregnated cutting structure exhibits an anisotropic wear resistance. The wear resistance varies at least substantially continuously within the abrasive-impregnated cutting structure.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 4, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Van J. Brackin, Jeffrey B. Lund, Danny E. Scott, Marcus R. Skeem, Matthew R. Isbell
  • Patent number: 8617289
    Abstract: A hardfacing composition essentially consisting of from about 50 to 75 percent by weight of a carbide phase having a particle size distribution of ±20% or less of a median particle size; and from about 25 to 50 percent by weight of binder phase is disclosed. Drill bits having such hardfacing compositions disposed thereon are also disclosed.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: December 31, 2013
    Assignee: Smith International, Inc.
    Inventors: Alan W. Lockstedt, Gregory T. Lockwood
  • Patent number: 8616307
    Abstract: Thermally stable diamond bonded construction comprise a diamond bonded body including a thermally stable region, comprising a plurality of diamond grains bonded together by a reaction product of the diamond grains with a reactant such as Si, and a polycrystalline diamond region, comprising intercrystalline bonded diamond and a catalyst material. The body further comprises a ceramic compound formed by reaction of an Nb, Zr, Ti, or Mo getter material with a gaseous element generated during HPHT sintering of the diamond bonded body. The diamond bonded body may comprise from 0.1 to 15 percent by weight of the ceramic compound. The diamond bonded body can be formed during a single HPHT process operated at different temperatures when the reactant has a melting temperature above the catalyst material. The construction may include a metallic substrate attached to the diamond bonded body to facilitate use as a wear or cutting element.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: December 31, 2013
    Assignee: Smith International, Inc.
    Inventors: Georgiy Voronin, J. Daniel Belnap
  • Publication number: 20130341100
    Abstract: A modular cutting-teeth drill bit with controllable drilling specific pressure comprises a module (1), a modular unit (2), a bit body (3), conventional cutting teeth (4) and a nozzle (5). According to mechanical performance of the rocks in the strata drilled and requirements of drilling well, a combination of shapes, sizes and numbers of the module and the modular unit is optimized; effective abrasion edge length of the cutting element on a certain portion of the bit is controlled; and a constant specific pressure of the cutting element of the bit during the drilling process is maintained. The modular cutting-teeth bit substantially improves the effective abrasion volume of the cutting element, and improves the effective utilization rate of the cutting element.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 26, 2013
    Inventors: Liang Zhang, Shu Li, Jialin Tian, Defa Zeng
  • Patent number: 8602129
    Abstract: A drill bit that includes a bit body having a plurality of blades extending radially therefrom, at least a portion of the plurality of blades comprises a first matrix region comprising a plurality of first carbide particles separated by a first binder phase, each of the first carbide particles comprising a mixture of WC and W2C, and wherein the first matrix region has less than about 5 percent by volume, based on the total volume of the first matrix region, of complex metal carbides dispersed in the first binder phase; and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: December 10, 2013
    Assignee: Smith International, Inc.
    Inventors: Gregory T Lockwood, Youhe Zhang